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Can anybody help me out? Started up my 2006 today and when I shut it off, I heard a noise coming from underneath the hood. Traced the noise to this box. Can anybody tell me what this box is and what could possibly be causing this noise?
thanks
19485
 

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Hi. What engine is this? 2.2? 2.4? Turbo-charged (or is it Super-charged with Cobalt?) I have never seen this box under my hood (2.2L Ecotec). Can you provide a little more info? Than you. RV
 

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Its the 2.2L ecotec. I'm thinking it has something to do with the brakes. There's 6 lines and two of them run to the master cylinder.
It says GM ASM PN #15246631 on the top. I'll have to get a better pic when I get home. It's making a weird buzzing sound, almost like tattoo gun. I'm not sure if there's a such thing as a brake pump, I'm thinking maybe its locked up.
 
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